12132142421 has 8 divisors (see below), whose sum is σ = 14187754944. Its totient is φ = 10157142240.

The previous prime is 12132142411. The next prime is 12132142427. The reversal of 12132142421 is 12424123121.

12132142421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12132142421 - 2¹⁰ = 12132141397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132142427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20152760 + ... + 20153361.

It is an arithmetic number, because the mean of its divisors is an integer number (1773469368).

Almost surely, 2^12132142421 is an apocalyptic number.

It is an amenable number.

12132142421 is a deficient number, since it is larger than the sum of its proper divisors (2055612523).

12132142421 is an equidigital number, since it uses as much as digits as its factorization.

12132142421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40306171.

The product of its digits is 768, while the sum is 23.

Adding to 12132142421 its reverse (12424123121), we get a palindrome (24556265542).

The spelling of 12132142421 in words is "twelve billion, one hundred thirty-two million, one hundred forty-two thousand, four hundred twenty-one".